CN114289187B - Bauxite flotation combined collector and preparation method thereof - Google Patents
Bauxite flotation combined collector and preparation method thereof Download PDFInfo
- Publication number
- CN114289187B CN114289187B CN202111639358.5A CN202111639358A CN114289187B CN 114289187 B CN114289187 B CN 114289187B CN 202111639358 A CN202111639358 A CN 202111639358A CN 114289187 B CN114289187 B CN 114289187B
- Authority
- CN
- China
- Prior art keywords
- collector
- amino acid
- fatty acid
- combined
- minerals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005188 flotation Methods 0.000 title claims abstract description 40
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 150000001413 amino acids Chemical class 0.000 claims abstract description 41
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 41
- 229930195729 fatty acid Natural products 0.000 claims abstract description 41
- 239000000194 fatty acid Substances 0.000 claims abstract description 41
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 38
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 4
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical group [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 claims description 32
- -1 oleoyl amino acid Chemical class 0.000 claims description 27
- COLNVLDHVKWLRT-UHFFFAOYSA-N phenylalanine Natural products OC(=O)C(N)CC1=CC=CC=C1 COLNVLDHVKWLRT-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- COLNVLDHVKWLRT-QMMMGPOBSA-N L-phenylalanine Chemical compound OC(=O)[C@@H](N)CC1=CC=CC=C1 COLNVLDHVKWLRT-QMMMGPOBSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 31
- 239000011707 mineral Substances 0.000 abstract description 31
- 238000001179 sorption measurement Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000005728 strengthening Methods 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 239000007795 chemical reaction product Substances 0.000 abstract 2
- 235000001014 amino acid Nutrition 0.000 description 35
- 229940024606 amino acid Drugs 0.000 description 35
- 229910001648 diaspore Inorganic materials 0.000 description 13
- 239000000203 mixture Substances 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- 235000008206 alpha-amino acids Nutrition 0.000 description 4
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- DCXYFEDJOCDNAF-UHFFFAOYSA-N Asparagine Natural products OC(=O)C(N)CC(N)=O DCXYFEDJOCDNAF-UHFFFAOYSA-N 0.000 description 3
- AYFVYJQAPQTCCC-UHFFFAOYSA-N Threonine Natural products CC(O)C(N)C(O)=O AYFVYJQAPQTCCC-UHFFFAOYSA-N 0.000 description 3
- 239000004473 Threonine Substances 0.000 description 3
- KZSNJWFQEVHDMF-UHFFFAOYSA-N Valine Natural products CC(C)C(N)C(O)=O KZSNJWFQEVHDMF-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 235000009582 asparagine Nutrition 0.000 description 3
- 229960001230 asparagine Drugs 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 229930182817 methionine Natural products 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 3
- 229910052604 silicate mineral Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004474 valine Substances 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- 239000004475 Arginine Substances 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- AGPKZVBTJJNPAG-WHFBIAKZSA-N L-isoleucine Chemical compound CC[C@H](C)[C@H](N)C(O)=O AGPKZVBTJJNPAG-WHFBIAKZSA-N 0.000 description 2
- ROHFNLRQFUQHCH-YFKPBYRVSA-N L-leucine Chemical compound CC(C)C[C@H](N)C(O)=O ROHFNLRQFUQHCH-YFKPBYRVSA-N 0.000 description 2
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 2
- KZSNJWFQEVHDMF-BYPYZUCNSA-N L-valine Chemical compound CC(C)[C@H](N)C(O)=O KZSNJWFQEVHDMF-BYPYZUCNSA-N 0.000 description 2
- ROHFNLRQFUQHCH-UHFFFAOYSA-N Leucine Natural products CC(C)CC(N)C(O)=O ROHFNLRQFUQHCH-UHFFFAOYSA-N 0.000 description 2
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 2
- 239000004472 Lysine Substances 0.000 description 2
- WQCMZYCKACKLDL-YUQDSPFASA-N N-Oleoyl proline Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N1CCC[C@H]1C(O)=O WQCMZYCKACKLDL-YUQDSPFASA-N 0.000 description 2
- UMOAAMQGRRCHPA-GJCOWUBNSA-N N-oleoyl-L-leucine Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N[C@H](C(O)=O)CC(C)C UMOAAMQGRRCHPA-GJCOWUBNSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- QIVBCDIJIAJPQS-UHFFFAOYSA-N Tryptophan Natural products C1=CC=C2C(CC(N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-UHFFFAOYSA-N 0.000 description 2
- 150000001370 alpha-amino acid derivatives Chemical class 0.000 description 2
- 150000001371 alpha-amino acids Chemical class 0.000 description 2
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 235000018417 cysteine Nutrition 0.000 description 2
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 description 2
- AGPKZVBTJJNPAG-UHFFFAOYSA-N isoleucine Natural products CCC(C)C(N)C(O)=O AGPKZVBTJJNPAG-UHFFFAOYSA-N 0.000 description 2
- 229960000310 isoleucine Drugs 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 238000000329 molecular dynamics simulation Methods 0.000 description 2
- 229940049964 oleate Drugs 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- VPGWWDZBZDPONV-DKWTVANSSA-N (2s)-2-aminobutanedioic acid;sodium Chemical compound [Na].OC(=O)[C@@H](N)CC(O)=O VPGWWDZBZDPONV-DKWTVANSSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 description 1
- DCXYFEDJOCDNAF-REOHCLBHSA-N L-asparagine Chemical compound OC(=O)[C@@H](N)CC(N)=O DCXYFEDJOCDNAF-REOHCLBHSA-N 0.000 description 1
- QIVBCDIJIAJPQS-VIFPVBQESA-N L-tryptophane Chemical compound C1=CC=C2C(C[C@H](N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-VIFPVBQESA-N 0.000 description 1
- OUYCCCASQSFEME-QMMMGPOBSA-N L-tyrosine Chemical compound OC(=O)[C@@H](N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-QMMMGPOBSA-N 0.000 description 1
- CHQZBIVWDKADIA-GDWUOILNSA-N N-Oleoyl alanine Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N[C@@H](C)C(O)=O CHQZBIVWDKADIA-GDWUOILNSA-N 0.000 description 1
- UOIBFJBJAWHQNM-JRUKXMRZSA-N N-Oleoyl tyrosine Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N[C@H](C(O)=O)CC1=CC=C(O)C=C1 UOIBFJBJAWHQNM-JRUKXMRZSA-N 0.000 description 1
- UUFVSGRELDGPGL-QJRAZLAKSA-N N-oleoyl-L-glutamic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N[C@H](C(O)=O)CCC(O)=O UUFVSGRELDGPGL-QJRAZLAKSA-N 0.000 description 1
- ZHVSXWCIYWYBQP-QJRAZLAKSA-N N-oleoyl-L-glutamine Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N[C@H](C(O)=O)CCC(N)=O ZHVSXWCIYWYBQP-QJRAZLAKSA-N 0.000 description 1
- TYWACVZIFBZIQZ-BSFUXZNJSA-N N-oleoyl-L-isoleucine Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N[C@H](C(O)=O)[C@@H](C)CC TYWACVZIFBZIQZ-BSFUXZNJSA-N 0.000 description 1
- MBDKGXAMSZIDKF-VJIACCKLSA-N N-oleoyl-L-serine Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N[C@@H](CO)C(O)=O MBDKGXAMSZIDKF-VJIACCKLSA-N 0.000 description 1
- HPFXACZRFJDURI-KTKRTIGZSA-N N-oleoylglycine Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)NCC(O)=O HPFXACZRFJDURI-KTKRTIGZSA-N 0.000 description 1
- ONIBWKKTOPOVIA-UHFFFAOYSA-N Proline Natural products OC(=O)C1CCCN1 ONIBWKKTOPOVIA-UHFFFAOYSA-N 0.000 description 1
- MTCFGRXMJLQNBG-UHFFFAOYSA-N Serine Natural products OCC(N)C(O)=O MTCFGRXMJLQNBG-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 235000004279 alanine Nutrition 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 235000003704 aspartic acid Nutrition 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- ZDXPYRJPNDTMRX-UHFFFAOYSA-N glutamine Natural products OC(=O)C(N)CCC(N)=O ZDXPYRJPNDTMRX-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229940104349 oleoyl tyrosine Drugs 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229940096992 potassium oleate Drugs 0.000 description 1
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical compound [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention belongs to the technical field of mineral flotation reagents, and particularly discloses a bauxite flotation combined collector and a preparation method thereof. The combined collector provided by the invention consists of a fatty acid collector and amino acid, and is obtained by mixing and reacting the fatty acid collector and the amino acid. The components in the combined collector not only comprise the fatty acid collector and the amino acid, but also comprise reaction products of the fatty acid collector and the amino acid, and the combined collector realizes the floatation of minerals through the synergistic strengthening effect of the components, and comprises the interface regulation and control of the amino acid on the minerals, the adsorption of the amino acid and the fatty acid collector on the interfaces of the minerals, and the strengthening adsorption effect of the reaction products of the amino acid and the fatty acid collector on the minerals. The combined collector can effectively improve the recovery rate of useful minerals, reduce the content of the useful minerals in tailings, and solve the flotation problem caused by complex mineral components.
Description
Technical Field
The invention relates to the field of flotation agents, in particular to a combined collector for bauxite flotation and a preparation method thereof.
Background
The flotation technology has the characteristics of large treatment capacity, low cost, low energy consumption and the like in improving the quality of low-quality mineral resources, and has been industrially applied. However, as mineral resources are continuously consumed, the ore grade gradually decreases, and the impurity content in minerals increases, so that flotation separation faces more challenges.
The use of the collector plays a decisive role in promoting mineral flotation separation, and the collector can selectively improve the surface hydrophobicity of minerals, increase the adhesion of the minerals on bubbles and shorten the attachment time, so that the sorting property of useful minerals and gangue minerals is improved. Fatty acid type anion collectors, such as oleic acid or oleate are commonly used in bauxite flotation. The collector mainly carries out chemical adsorption on carboxyl and minerals, and has the problems of low price, low toxicity, poor selectivity, low resource recovery rate and the like. It has been found that collectors having two or more functional groups have a higher selectivity for minerals and higher collection capacity than single functional group collectors, but generally have a complicated synthesis method and high production costs.
The combined collector has remarkable effect in improving flotation efficiency, different medicament components are adsorbed on the surface of minerals, so that the hydrophilic and hydrophobic characteristics of the surfaces of the minerals can be effectively improved, and different components in the combined collector have the characteristics of changing the surface characteristics of the minerals and enhancing the surface difference between the minerals. And different active groups in the combined collector can play a role in synergistic promotion on flotation, so that mineral flotation separation is enhanced. In addition, the combined collector has the characteristics of simple preparation process and low cost. For the reasons, the novel combined collector with excellent performance stability has important significance for high-efficiency flotation and upgrading of low-quality mineral resources.
Disclosure of Invention
The invention mainly solves the technical problem of providing a combined collector which has high selectivity and strong collection performance and is suitable for bauxite flotation. The specific technical scheme is as follows:
in a first aspect, the present invention provides a bauxite flotation combined collector comprising a fatty acid based collector and an amino acid.
As a preferred embodiment of the present invention, the combined collector is prepared by a mixed reaction of a fatty acid collector and an amino acid.
In a preferred embodiment of the present invention, the molar ratio of the fatty acid collector to the amino acid is 1 (0.2 to 2), more preferably 1 (0.5 to 1.5), and still more preferably 1:1.
As a preferred embodiment of the present invention, the fatty acid collector is any one or a mixture of several of oleic acid, sodium oleate and potassium oleate.
As a preferred embodiment of the present invention, the amino acid may be a common alpha-amino acid, preferably a hydrophobic alpha-amino acid, further preferably phenylalanine.
In a second aspect, the invention provides a method for preparing a bauxite flotation combined collector, wherein the method for preparing the combined collector comprises the step of mixing the fatty acid collector and amino acid with water to prepare the combined collector.
Preferably, the mixing temperature is 5-40 ℃ and the mixing time is 30-100 min.
As a preferred embodiment of the present invention, the fatty acid collector and the amino acid are mixed with water in the following ratio: the mass of the fatty acid collector and the amino acid is 1 to 4%, preferably 2% of the total mass of the fatty acid collector, the amino acid and the water.
As a preferred embodiment of the invention, the preparation method of the combined collector further comprises the step of drying the combined collector to prepare a solid reagent.
In a third aspect, the present invention provides the use of a combined collector as described in mineral flotation separation, further preferably in bauxite flotation separation.
When the bauxite flotation combined collector provided by the invention is prepared, the fatty acid collector and the amino acid are respectively dissolved in water, and then the fatty acid collector and the amino acid are mixed to prepare a combined collector solution;
or dissolving fatty acid collector and amino acid in water to obtain combined collector solution;
the prepared combined collector solution can be further dried to obtain the combined collector solid reagent.
The bauxite flotation combined collector provided by the invention has two functions of amino acid: one of the functions is to adjust the surface potential of diasporite and silicate minerals, strengthen the adsorption of diasporite and fatty acid collector, reduce the adsorption of fatty acid collector on the surface of silicate minerals, and improve the flotation selectivity; the other function is that amino acid and fatty acid collector form dimer through hydrogen bond or electrostatic action, or the amino group of amino acid and carboxyl of fatty acid collector generate dehydration condensation reaction to form oleoyl amino acid, the oleoyl amino acid and diasporite mineral generate strong chemical or chelating adsorption, strengthen the collection of diasporite, and increase the floatation recovery rate of diasporite mineral.
The beneficial effects of the invention are as follows:
(1) Amino acid is added into the fatty acid collector, and the amino acid has the function of regulating and controlling the interface properties of diasporite and silicate minerals, so that the selectivity of the fatty acid collector to the minerals is enhanced, and meanwhile, the amino acid can react with the fatty acid collector to generate oleoyl amino acid, so that the collection of diasporite can be remarkably enhanced;
(2) The amino acid and the fatty acid collector can generate a dimer or generate oleoyl amino acid through dehydration condensation reaction under the condition of liquid phase normal temperature, the fatty acid collector, the amino acid and the oleoyl amino acid coexist in the combined collector, and the three active components have synergistic effect, so that the floatation strengthening effect of the combined collector is enhanced.
The combined collector can effectively improve the action efficiency of the collector, reduce the consumption of the collector, improve the recovery rate of useful minerals and solve the flotation problem caused by complex mineral components.
Experiments show that the combined collector is not only suitable for bauxite, but also has obvious floatation effect on other minerals.
Detailed Description
The technical scheme of the invention is described in detail through specific examples.
Examples1
In this example, the adsorption energy of 20 mixtures of α -amino acids and sodium oleate and 20 interfaces of oleoyl amino acids and diasporite (010) in aqueous phase environment was calculated using quantum chemistry and molecular dynamics methods.
The specific implementation method comprises the following steps: firstly, 20 alpha-amino acids, sodium oleate, 20 oleoyl amino acids and diasporic duralumin Dan Jingbao are subjected to structural optimization by utilizing quantum chemistry, a super cell taking a diasporic (010) surface as a cleavage surface is constructed, and the adsorption energy of the amino acids, sodium oleate, oleoyl amino acids and sodium oleate on the diasporic (010) surface is calculated by adopting molecular dynamics simulation. The specific adsorption energy calculation results are shown in Table 1.
TABLE 1
Medicament | Adsorption energy kJ.mol -1 | Medicament | Adsorption energy kJ.mol -1 |
Glycine+sodium oleate | -120.46 | Oleoylglycine | -159.60 |
Alanine sodium oleate | -134.98 | Oleoylalanine | -168.65 |
Valine + sodium oleate | -208.23 | Oleoyl valine | -192.87 |
Leucine+sodium oleate | -219.45 | Oleoyl leucine | -200.45 |
Isoleucine + sodium oleate | -202.32 | Oleoyl isoleucine | -189.62 |
Phenylalanine+sodium oleate | -227.39 | Oleoyl phenylalanine | -234.14 |
Tryptophan sodium oleate | -168.34 | Oleoyl tryptophan | -197.74 |
Tyrosine+sodium oleate | -172.36 | Oleoyl tyrosine | -189.24 |
Aspartic acid sodium oleate | -176.66 | Oleoyl aspartic acid | -182.59 |
Asparagine+sodium oleate | -189.13 | Oleoyl asparagine | -201.87 |
Glutamic acid sodium oleate | -143.12 | Oleoyl glutamic acid | -165.45 |
Lysine and sodium oleate | -187.98 | Oleoyl lysine | -165.19 |
Glutamine + sodium oleate | -159.12 | Oleoyl glutamine | -181.19 |
Methionine+sodium oleate | -210.73 | Oleoyl methionine | -188.01 |
Serine+sodium oleate | -174.88 | Oleoyl serine | -190.36 |
Threonine + sodium oleate | -129.47 | Oleoyl threonine | -202.36 |
Cysteine+sodium oleate | -140.24 | Oleoyl cysteine | -168.25 |
Proline+sodium oleate | -179.65 | Oleoyl proline | -204.79 |
Histidine + sodium oleate | -142.90 | Oleoyl histidine | -176.36 |
Arginine+sodium oleate | -129.56 | Oleoyl arginine | -187.90 |
Oleic acid sodium salt | -153.50 |
The adsorption energy of sodium oleate on diasporite (010) surface is 153.50 kJ.mol -1 The adsorption energy of the combined medicament of the hydrophobic amino acids valine, leucine, isoleucine, phenylalanine, methionine and sodium oleate on the surface of diasporite (010) exceeds 200 kJ.mol -1 The adsorption energy of oleoyl leucine, oleoyl phenylalanine, oleoyl asparagine, oleoyl threonine and oleoyl proline on diasporite (010) surface exceeds 200 kJ.mol -1 . Phenylalanine in combination with sodium oleate and oleoyl phenylalanine adsorption energy on diasporite (010) face is more than 200 kJ.mol -1 Is higher than the adsorption energy of sodium oleate on diasporite (010) surface.
Examples 2 to 9
Examples 2-9 below used a fatty acid/salt and amino acid combination collector for bauxite flotation, and examples 2-9 used the same raw bauxite ore with chemical composition analysis as shown in table 2.
TABLE 2
Composition of the components | Al 2 O 3 | SiO 2 | Fe 2 O 3 | TiO 2 | K 2 O | Na 2 O | CaO | MgO | Burning loss |
Wt% | 56.78 | 15.58 | 6.28 | 2.71 | 1.32 | 0.13 | 0.36 | 0.38 | 12.95 |
The specific flotation method comprises the following steps: ball milling is carried out on bauxite raw ore until the granularity is 85% with 200 meshes, the ground ore pulp is transferred into a 1.5L flotation tank for flotation desilication, the pH value of the pulp is regulated to 9.5, and flotation is carried out after a collector is added, wherein the consumption of the collector is 1000g/t of the raw ore. The preparation method of the combined collector is shown in table 3.
TABLE 3 Table 3
The composition analysis was performed on the combined collector shown in table 3, and the composition of the components and the mass percentage analysis results of the combined collector are shown in table 4 below.
TABLE 4 Table 4
From the results of the mass percentages of the components of the combined collector shown in Table 3, it is understood that examples 3 to 9, except for phenylalanine and fatty acid salt, all had oleoyl amino acid salt products, and the combined collector was prepared by different methods, in which the content of oleoyl amino acid salt was different. The oleoyl amino acid salt contents in examples 4, 5, 8, and 9 were 84.2%, 90.1%, 83.1%, and 81.9%, respectively, indicating that the amino acid to fatty acid salt reaction rate was greater than 80% under this preparation condition.
Bauxite was subjected to flotation using the combined collectors shown in table 3, with one roughing mode, and the final flotation results are shown in table 5 below.
TABLE 5
From the flotation results shown in table 5, it is understood that in example 2, sodium oleate was used as a collector, the yields of the obtained flotation concentrate and tailings were 74.42% and 25.58%, respectively, and the aluminum-silicon ratios (a/S) of the obtained flotation concentrate and tailings were 5.72 and 1.54, respectively. Compared with the flotation result of the combined collector of the amino acid and the fatty acid salt in the example 2, the concentrate yield is increased, the tailing aluminum-silicon ratio (A/S) is reduced, the flotation concentrate yield obtained in the example 5 is 86.07%, and the flotation tailing aluminum-silicon ratio (A/S) is 1.13. The use of the combined collector improves the yield of the flotation concentrate, reduces the aluminum-silicon ratio (A/S) of the flotation tailings, and improves the recovery rate of aluminum oxide.
Claims (6)
1. The bauxite flotation combined collector is characterized by comprising a fatty acid collector and amino acid, wherein the preparation method of the combined collector comprises the steps of mixing the fatty acid collector and the amino acid with water to prepare the combined collector;
the fatty acid collector is sodium oleate; the combined collector contains both fatty acid collector, amino acid and oleoyl amino acid; the amino acid is phenylalanine;
the molar ratio of the sodium oleate to the phenylalanine is 1:1.
2. The combined collector of claim 1 wherein the mixing temperature is 5-40 ℃.
3. The combined collector of claim 2 wherein the fatty acid collector and amino acid are mixed with water in a feed ratio of: the mass of the fatty acid collector and the amino acid is 1-4% of the total mass of the fatty acid collector, the amino acid and the water.
4. A combined collector as claimed in claim 3 wherein the fatty acid collector and amino acid are mixed with water in a feed ratio of: the mass of the fatty acid collector and the amino acid is 2% of the total mass of the fatty acid collector, the amino acid and the water.
5. The combined collector of claim 3 or 4, wherein the method for preparing the combined collector further comprises drying the combined collector to prepare a solid reagent.
6. Use of a combined collector according to any one of claims 1 to 5 in bauxite flotation separation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111639358.5A CN114289187B (en) | 2021-12-29 | 2021-12-29 | Bauxite flotation combined collector and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111639358.5A CN114289187B (en) | 2021-12-29 | 2021-12-29 | Bauxite flotation combined collector and preparation method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN114289187A CN114289187A (en) | 2022-04-08 |
CN114289187B true CN114289187B (en) | 2024-01-26 |
Family
ID=80971148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111639358.5A Active CN114289187B (en) | 2021-12-29 | 2021-12-29 | Bauxite flotation combined collector and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114289187B (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4171261A (en) * | 1975-11-11 | 1979-10-16 | Chem-Y, Fabriek Van Chemische Produkten B.V. | Process for the flotation of ores and collector for use in this process |
CN101686935A (en) * | 2007-07-03 | 2010-03-31 | 佐治亚-太平洋化工品有限公司 | The chemical modification of maleated fatty acids |
CN104148191A (en) * | 2014-08-05 | 2014-11-19 | 中南大学 | Bauxite direct flotation composite collector and application method thereof |
CN109530094A (en) * | 2019-01-17 | 2019-03-29 | 湖南中医药大学 | Amide groups hydroxycarboxylic acid/hydroximic acid compound and its application in mineral floating |
CN109701735A (en) * | 2018-10-11 | 2019-05-03 | 广东光华科技股份有限公司 | Composite collector, low Fe-spodumene concentrate and preparation method thereof |
CN109761837A (en) * | 2019-02-21 | 2019-05-17 | 中南大学 | The preparation method and application of amido-carboxylic acid class compound |
CN112934477A (en) * | 2021-02-22 | 2021-06-11 | 郑州大学 | Bauxite processing method |
CN114192285A (en) * | 2021-12-10 | 2022-03-18 | 中南大学 | Collecting agent with carboxyl-hydroximo structure, preparation thereof and application thereof in flotation |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016065189A1 (en) * | 2014-10-23 | 2016-04-28 | Georgia-Pacific Chemicals Llc | Polyamidoamine cationic collectors and methods for making and using same |
-
2021
- 2021-12-29 CN CN202111639358.5A patent/CN114289187B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4171261A (en) * | 1975-11-11 | 1979-10-16 | Chem-Y, Fabriek Van Chemische Produkten B.V. | Process for the flotation of ores and collector for use in this process |
CN101686935A (en) * | 2007-07-03 | 2010-03-31 | 佐治亚-太平洋化工品有限公司 | The chemical modification of maleated fatty acids |
CN104148191A (en) * | 2014-08-05 | 2014-11-19 | 中南大学 | Bauxite direct flotation composite collector and application method thereof |
CN109701735A (en) * | 2018-10-11 | 2019-05-03 | 广东光华科技股份有限公司 | Composite collector, low Fe-spodumene concentrate and preparation method thereof |
CN109530094A (en) * | 2019-01-17 | 2019-03-29 | 湖南中医药大学 | Amide groups hydroxycarboxylic acid/hydroximic acid compound and its application in mineral floating |
CN109761837A (en) * | 2019-02-21 | 2019-05-17 | 中南大学 | The preparation method and application of amido-carboxylic acid class compound |
CN112934477A (en) * | 2021-02-22 | 2021-06-11 | 郑州大学 | Bauxite processing method |
CN114192285A (en) * | 2021-12-10 | 2022-03-18 | 中南大学 | Collecting agent with carboxyl-hydroximo structure, preparation thereof and application thereof in flotation |
Also Published As
Publication number | Publication date |
---|---|
CN114289187A (en) | 2022-04-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111617885B (en) | Synchronous reverse flotation process for low-magnesium high-sesqui collophanite | |
CN101121151A (en) | Bauxite surface preprocessing-reverse floatation desiliconizing method | |
CN108499743B (en) | Combined inhibitor for inhibiting pumice stone minerals and using method thereof | |
CN109772590B (en) | Collecting agent for flotation decalcification of magnesite and application thereof | |
CN109985731A (en) | A kind of high magnesium sulphide mineral flotation inhibitor and its application with sustained release transformation function | |
CN114289187B (en) | Bauxite flotation combined collector and preparation method thereof | |
CN114887757A (en) | Mineral separation method for lepidolite | |
CN112934477B (en) | Bauxite treatment method | |
CN101632961A (en) | Beta-hydroxy fatty acid collecting agent for positive floatation of iron ore and application thereof | |
CN114011585A (en) | Flotation method for fine-grained collophanite in gravity concentration tailings | |
WO2021128771A1 (en) | Application of 2-cyano-n-(substituted carbamoyl) acetamide compound in calcium-containing mineral flotation | |
CN112221718A (en) | Collecting agent applied to normal-temperature alkali-free flotation of collophanite and preparation method thereof | |
CN105149102A (en) | High-sulfur bauxite desulfuration flotation activating agent and desulfuration method | |
CN109453747A (en) | A method of cellulase adsorbent is used for based on lignin preparation | |
CN102125892B (en) | Manufacturing method of collector for three functional groups of lean hematite anionic reverse flotation | |
CN101857256B (en) | Method for removing silicon dioxide from low-grade diasporite type bauxite | |
CN111451001B (en) | Medium-low grade mixed collophanite flotation separation reagent system and application thereof | |
CN114247567B (en) | Collecting agent for synchronously collecting siliceous and magnesia minerals, and preparation method and application thereof | |
CN115007326A (en) | Flotation method for high-calcium type tungsten fluorite ore | |
CN114054212A (en) | Composite inhibitor and application thereof | |
CN113976325B (en) | Desilication agent and double reverse flotation method for separating collophanite and quartz | |
CN115582224B (en) | Flotation combination reagent and application thereof, and method for flotation desilication of micro-fine zinc oxide ore | |
CN115254440B (en) | Application of curdlan as inhibitor in fluorite ore floatation and application method thereof | |
CN117123359A (en) | Method for synchronously removing magnesium and aluminum in phosphorite by gravity flotation and combined separation | |
CN117696262A (en) | Mineral separation inhibitor and application thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |